hayes said he escorted jennifer hawk-petit to the bank, where she withdrew $15,000. and when she return said, the other suspect had already sexually assaulted 11-year-old michaela. and he told him to, quote, have sex with the mother to square things up. she was later strangled to death. >> hayes was trying to point to the codefendant and say he was the bad guy. he was the worst one. >> reporter: jurors saw surveillance video of hayes purchasing gas that prosecutors say was used to set the house on fire, trying to cover up the act. he found soot in michaela's voice box, airways and lungs, showing it took several minutes for her to pass away. >> when the medical examiner took the stand, william petit and other family members left the courtroom. details of his family said it was too much for them. >>> less than three hours of the execution of a woman in virginia in more than a century. this death penalty case is creating international controversy. >> reporter: 41-year-old teresa louis is set to die by leth an injection at 9:00 tonight. all of her legal appeals have been